21371460

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{32381}}^1$

素因数の和:32404

約数の個数: 48

約数和(自身を含む): 65282112

約数和(自身を除く): 43910652

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 44, 55, 60, 66, 110, 132, 165, 220, 330, 660, 32381, 64762, 97143, 129524, 161905, 194286, 323810, 356191, 388572, 485715, 647620, 712382, 971430, 1068573, 1424764, 1780955, 1942860, 2137146, 3561910, 4274292, 5342865, 7123820, 10685730, 21371460]

約数ペア:

[(1, 21371460), (2, 10685730), (3, 7123820), (4, 5342865), (5, 4274292), (6, 3561910), (10, 2137146), (11, 1942860), (12, 1780955), (15, 1424764), (20, 1068573), (22, 971430), (30, 712382), (33, 647620), (44, 485715), (55, 388572), (60, 356191), (66, 323810), (110, 194286), (132, 161905), (165, 129524), (220, 97143), (330, 64762), (660, 32381)]